Daniel added initial support for GObject properties.
This is not finished yet, but the initial parser and code generation
is done.

Guillaume turned gir, the binding generator in
gtk-rs, from a binary into a library crate. This will let
us have all the GObject Introspection information for parent classes
at compilation time.

Antoni has been working on a tricky problem. GTK+ structs that have
bitfields do not get reconstructed correctly from the
GObject Introspection information — Rust does not handle C
bitfields yet. This has two implications.
First, we lose some of the original struct fields in the generated
bindings. Second, the sizes of the generated structs are not the
same as the original C structs, so g_type_register_static()
complains that one is trying to register an invalid class.

Yesterday we got as far as reading the amd64 and ARM
ABI manuals to see what the hell C compilers are supposed to do for
laying out structs with bitfields. Most likely, we will have a
temporary fix in gir's code generator so that it generates
structs with the same layout as the C ones, with padding in place of
the space for bitfields. Later we can remove this when rustc gets
support for C bitfields.

I've been working on support for GObject interfaces. The basic
parsing is done; I'm about to refactor the code generation so I can
reuse the parts that fill vtables from classes.

Yesterday we went to the Madrid Rust Meetup, a regular meeting of
rustaceans here. Martin talked about WebRender; I talked about
refactoring C to port it to Rust, and then Alex talked about Rust's
plans for 2018. Fun times.